Trinh Viet Doan Justus Fries Vaibhav Bajpai Evaluating Public DNS Services in the Wake of Increasing Centralization of DNS. 1-9 2021 Networking https://doi.org/10.23919/IFIPNetworking52078.2021.9472831 http://opendl.ifip-tc6.org/db/conf/networking/networking2021/1570700957.pdf conf/networking/2021 db/conf/networking/networking2021.html#DoanFB21